coooooold brrrrrr

[gavgtiturbo]

Got in the car today and the heaters cold,any ideas? Temp gauge sits normal and the thermostat is new,took it for a good run and still cold    PLEASE help 
Im going to change the temp sender asap but i dont think this should have anything to do with the heater temp.

[Hulmie]

water pump failure? no sign of head gasket gone?

[gavgtiturbo]

Just got back from the shop,it got up to temp on the way back and its blowing warm again now?? no sign of the head gasket gone,and im guessing if the water pump was nackered it would stay cold 

[Hulmie]

If the it is still the original water pump then over time these go and the propellers wear away or break off. It can still blow warm sometime

[gavgtiturbo]

If the it is still the original water pump then over time these go and the propellers wear away or break off. It can still blow warm sometime

Is there anyway of testing it,i dont want to change it if i dont need too 

[stevelfc]

have you got a air lock in the system ?

[Wayne]

Could be an air lock or blocked matrix